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Transcript
Geometry
1st Semester Review - Vocabulary
1) A ___________ is an example that shows that a statement is false.
2) A __________ statement is an “if-then” statement.
3) Two points are __________ if they lie on the same line.
4) __________ lines are coplanar lines that do not intersect.
5) __________ lines are non-coplanar lines.
6) A __________ is a segment that goes from a vertex of a triangle perpendicular to the opposite
side.
7) A __________ is a segment that goes from a vertex of a triangle to the midpoint of the
opposite side.
8) A __________ triangle is a triangle having no congruent sides.
9) A __________ polygon is a polygon that is equilateral and equiangular.
10) Three or more lines intersecting at the same point are called __________ lines.
11) __________ angles are non-adjacent angles formed by 2 intersecting lines.
12) __________ is the set of all points.
13) Two lines that intersect to form a right angle are called ___________ lines.
14) An __________ triangle is a triangle having 3 congruent sides.
15) __________ points are points that lie in the same plane.
16) A __________ is formed by switching the hypothesis and conclusion of an if-then statement.
17) A __________ is formed by negating or adding a “not” to a statement.
18) A __________ is a statement that has been proven to be true.
19) A __________ is a line that is coplanar with 2 other lines and it intersects them at 2 different
points.
20) If 2 angles have the same degree measure, then they are ___________.
21) A line that goes through the midpoint of a segment is called a ____________ of the segment.
22) The distance around a polygon is called its ___________.
23) Two angles that are adjacent and whose non-common sides form a straight line are called a
___________ ______.
24) An __________ triangle is a triangle having 3 congruent angles.
25) A polygon is ___________ if it has an indention or is “caved in”.
26) Two angles whose degree measures add up to 180 degrees are called __________ angles.
27) The 3 undefined terms in Geometry are _________, _________, and _________.
28) The included angle between the congruent sides of an isosceles triangle is called the
__________ angle.
29) A __________ is when you turn a figure around a given point.
30) The “if” part of an if-then statement is called the ___________.
31) The “then” part of an if-then statement is called the ___________.
32) An __________ is formed when you negate both parts of an if-then statement.
33) A __________ is formed by joining 2 statements with the word “and”.
34) A __________ is a what we normally call a conclusion in Geometry.
35) A __________ is formed by joining 2 statements with the word “or”.
36) “Rise over run” is one form of a __________ formula.
37) An equation written in the form y = mx + b is said to be written in ______________ form.
38) A __________ is a statement that is formed by doing both a converse and an inverse.
39) A ___________ is a statement that we accept as true but has never been proven to be true.
40) ___________ angles are 2 angles that are coplanar, have a common side, and no common
interior points.
41) A ___________ is formed by flipping a figure over a line.
42) A ___________ is formed by sliding a figure some direction.
43) ___________ reasoning is when you reach a conclusion or conjecture by looking at several
examples and determining a pattern.
44) ___________ reasoning is when you reach a conclusion or conjecture based on a fact we
know is true.
45) The distance around a circle is known as its __________.
46) Two angles whose degree measures add up to 90 are called __________ angles.
47) A polygon that is not dented or caved in is called a __________ polygon.
48) A __________ is a closed figure formed entirely by segments.
49) A ray that divides an angle into 2 congruent angles is called the ___________ of the angle.
50) An __________ angle of a polygon is outside of the polygon and it forms a linear pair with
an interior angle of the polygon.
51) The 2 interior angles of a triangle that do not form a linear pair with an exterior angle are
called the ___________ __________ angles.
52) A triangle having at least 2 congruent sides is called an __________ triangle.
53) The point of concurrency of 3 medians in a triangle is called the __________.
54) The point of concurrency of 3 altitudes in a triangle is called the __________.
55) The point of concurrency of 3 angle bisectors in a triangle is called the _________.
56) The point of concurrency of 3 perpendicular bisectors in a triangle is called the __________.
57) A ___________ of a triangle is a segment that joins the midpoints of 2 sides of the triangle.
58) A ___________ _______ of 2 numbers is found by multiplying them together and then doing
the square root.
59) A ___________ is formed by setting 2 ratios equal to each other.
60) ___________ figures are 2 figures that are the same size and same shape.
61) ___________ figures are 2 figures that are the same shape but not necessarily the same size.
62) The ratio of the sides of 2 similar figures is called the ________ ___________.